A series of (beta-aminoethyl)indolones and related compounds was synthesized and evaluated in vitro as peripheral prejunctional dopaminergic agonists in the field-stimulated isolated perfused rabbit ear artery. 4-[2-(Di-n-propylamino)ethyl]-7-hydroxy-2(3H)-indolone was the most potent compound (ED50 = 2 +/- 0.3 nM) tested, while the related secondary amine 24 and the des-OH derivatives 28 and 34 were
合成了一系列(β-
氨基乙基)
吲哚酮和相关化合物,并在体外刺激的离体灌流兔耳动脉中作为外围结前
多巴胺能激动剂进行了体外评估。4- [2-(二-正丙基
氨基)乙基] -7-羟基-2(3H)-
吲哚酮是测试的最有效化合物(ED50 = 2 +/- 0.3 nM),而相关的仲胺24和des-OH衍
生物28和34的效力略低。使用4-
甲氧基苯乙胺和2-甲基-3-
硝基苯基
乙酸作为合成4-(β-
氨基乙基)
吲哚酮的起始原料。通过硝化衍生自4-
甲氧基苯基
乙酸的苯
乙胺43制备开环的3-酰基
氨基类似物46和47。非活性异构体
吲哚酮38、39和41衍生自
4-硝基苯乙胺和
吲哚酮-6-
乙酸。